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Ratabulus megacephalus (Tanaka, 1917)

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Ratabulus megacephalus   AquaMaps   Data sources: GBIF OBIS
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Image of Ratabulus megacephalus
Ratabulus megacephalus
Picture by Cornish, A.

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Perciformes/Scorpaenoidei (Scorpionfishes) > Platycephalidae (Flatheads)
Etymology: More on author: Tanaka.

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; demersal; depth range 79 - 261 m (Ref. 9790). Temperate

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

North Western Pacific: East and South China seas; southern Japan, Korea, Taiwan, Hainan Island and northern Philippines.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 35.0 cm TL male/unsexed; (Ref. 9790); common length : 30.0 cm TL male/unsexed; (Ref. 9790)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 10; Dorsal soft rays (total): 11 - 12; Anal spines: 0; Anal soft rays: 12. This species is distinguished by the following characters: 94-112 anteroventrally slanted oblique scale rows above lateral line; snout length 31.2-35.7% HL, markedly decreasing in length proportionally with growth; pectoral fin length 13.9-17.0% SL; pelvic fin length 19.5-23.1% SL; nasal bone without tubercles; dorsal surface of head and body dark brown, with small, round, dark-brown spots; and pelvic fin with small brown to black spots (Ref. 86254).

Biology     Glossary (e.g. epibenthic)

Taken by trawling at depths of 79 to 261m. Recorded by Galathea Station 539 as being dredged over gravel (Ref. 9790).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Imamura, H. and M.F. Gomon, 2010. Taxonomic revision of the genus Ratabulus (Teleostei: Platycephalidae), with descriptions of two new species from Australia. Memoirs of Museum Victoria 67:19-33. (Ref. 86254)

IUCN Red List Status (Ref. 130435)

  Not Evaluated 

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Fisheries: minor commercial
FAO - Publication: search | FishSource |

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Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | National databases | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 9.7 - 26.4, mean 19.1 °C (based on 177 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5625   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00525 (0.00246 - 0.01120), b=3.04 (2.85 - 3.23), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.8   ±0.7 se; based on size and trophs of closest relatives
Resilience (Ref. 120179):  Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (25 of 100).
Price category (Ref. 80766):   High.